ADEP – Awaiting development with exploration potential, referring to an asset.
ADE – Advanced decision-making environment.ABSA – Alberta Boilers Safety Association.ABAN – Abandonment, (also as AB and ABD and ABND).AAODC – American Association of Oilwell Drilling Contractors (obsolete superseded by IADC).AAPL – American Association of Professional Landmen.AAPG – American Association of Petroleum Geologists.AADE – American Association of Drilling Engineers.8rd – eight round (describes the number of revolutions per inch of pipe thread).4D – multiple 3Ds acquired over time (the 4th D) over the same area with the same parameters ( geophysics).3P – proved, probable and possible reserves.3C – Proved, probable and possible contingent resources.3C – three components seismic acquisition (x, y, and z).2oo3 – Two out of three voting (instrumentation).2oo2 – Two out of two voting (instrumentation).2C – Proved and probable contingent resources.1oo2 – One out of two voting (instrumentation).
